A magnetic clamping auxiliary laser centering device for drilling machine

Abstract

The present application provides a drilling machine magnetic clamping auxiliary laser centering device, which comprises a laser emitter, a magnetic shell, an end cover, a bolt, a cover, a support block, a clamping jaw and a limiting ring; the support block is a split combined structure, comprising a first support block, a second support block and a third support block, the lower part of the third support block extends out of the magnetic shell, and the laser emitter is assembled at the center of the third support block and is collinear with the center of the support block; the clamping jaw is arranged in the interval cavity of the support block, repulsive magnetic force contacts the drill bit and locks it; the limiting ring is assembled on the support block and limits the clamping jaw; the end cover is concentric with the magnetic shell and is assembled at one end of the magnetic shell, the support block is accommodated in the magnetic shell, and the laser emitter assembled at the extended part of the third support block protrudes out of the magnetic shell; the cover is concentric with the magnetic shell and is assembled at the other end of the magnetic shell; and the bolt is used for detachably assembling the end cover and the cover on the magnetic shell. The center point and the center line of the drill bit are indicated by laser.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of mechanical drilling machine tooling, in particular to a drilling machine magnetic clamping auxiliary laser centering device. BACKGROUND

[0002] The shipbuilding field has complex construction, diversity of piping, and complex working environment. In construction, a large number of pipes, blind plates, and tooling of various diameters and materials are processed and drilled. Before drilling, the workpiece needs to be clamped and the hole opening position needs to be adjusted to the center point position of the drilling machine.

[0003] However, the present inventors found at least the following technical problems in the process of implementing the technical solutions of the embodiments of the present application:

[0004] It is difficult to draw and mark the center point and center line of the drilling machine. The marking pen is not easy to mark the center point and center line of the drilling machine. If a center drill is used to pre-punch mark, a permanent concave point will be formed on the workpiece. Once the center drill pre-punch point needs to be adjusted, the concave point formed by the original workpiece will be a defect. If the new and old concave points are repeatedly punched, they cannot be erased, causing confusion and quality problems. At the same time, the center drill of the drilling machine can only punch the center point and cannot mark the center line. SUMMARY

[0005] In order to solve the problems existing in the prior art, the present application provides a drilling machine magnetic clamping auxiliary laser centering device to solve the problem of difficulty in marking the center point and center line of the drilling machine. The device is connected concentrically with the magnetic shell through the laser emitter. The drill bit and the laser emitter are collinear. The center point / line marked by the laser point / line with the marker is the same as the center point / line of the drilling machine, which improves the work efficiency and avoids the damage to the workpiece caused by the traditional center drill twice punching. The technical problem of difficulty in marking the center point and center line of the drilling machine is solved.

[0006] The present application adopts the following solutions to solve the technical problems:

[0007] A drilling machine magnetic clamping auxiliary laser centering device includes a laser emitter, a magnetic shell, an end cover, a bolt, a cover, a support block, a clamping jaw, and a limiting ring.

[0008] The laser emitter is used for emitting a cross line laser light source to confirm the center point / line of the drilling machine; the magnetic shell has a hollow cylindrical structure and is magnetic; the support block is concentrically assembled in the magnetic shell and has a split type combined structure, including a first support block, a second support block and a third support block, the lower part of the third support block extends out of the magnetic shell, and the laser emitter is assembled at the center of the third support block and is collinear with the center of the support block; the clamping jaw is arranged in the interval cavity of the support block, and the repulsive magnetic force is formed in the magnetic shell to apply a radial clamping force to the drill bit for contacting and centering and locking the drill bit, the clamping center of the clamping jaw coincides with the center of the drill bit, and the center of the laser emitter is collinear with the center of the drill bit; the limiting ring is assembled on the support block to limit the clamping jaw; the end cover is concentric with the magnetic shell and is assembled at one end of the magnetic shell to accommodate the support block in the magnetic shell, and the laser emitter assembled at the extension of the third support block protrudes out of the magnetic shell; the cover is concentric with the magnetic shell and is assembled at the other end of the magnetic shell to accommodate the support block in the magnetic shell, and the drill bit is inserted into the center of the clamping jaw to accommodate the drill bit in the inner cavity of the support block; the bolt is used for detachably assembling the end cover and the cover on the magnetic shell.

[0009] Wherein, the drill bit passes through the cover and is inserted into the inner cavity of the support block, and the drill bit is centered and clamped by the clamping jaw in the support block; the magnetic shell, the laser emitter and the drill bit are concentric, the center point and the center line of the drill bit are indicated by the laser, and the center point and the center line of the drilling machine are directly marked by a marker pen according to the laser indication.

[0010] The technical scheme provided in the embodiment of the application has at least the following technical effects or advantages:

[0011] 1. Since the support block and the magnetic shell are concentrically connected in the embodiment of the application, the center of the two is collinear, the drill bit is centered and clamped by the clamping jaw and is concentric with the support block, i.e. the magnetic shell, the laser emitter and the drill bit are concentric, the drill bit inserted into the inner cavity of the support block through the cover is collinear with the center of the laser emitter assembled on the center of the laser mounting seat, the laser point / line emitted by the laser emitter is the center point / line of the drill bit, the technical problem that the center point and the center line of the drilling machine are not easy to mark in the prior art is effectively solved, the center point / line marked by the laser point / line is equivalent to the center point / line of the drilling machine, and the technical effect of improving work efficiency and avoiding damage to the workpiece caused by traditional center drilling twice is achieved.

[0012] 2. Since the clamping jaw is arranged in a circular array in the embodiment of the application, the technical problem that the center point and the center line of the drilling machine are not easy to mark in the prior art is effectively solved, and the technical effect that the center of the clamping jaw coincides with the center of the magnetic shell is achieved.

[0013] 3. The blind hole drilling angle is 118°, which forms a centering pit at the bottom of the blind hole. When the drill bit is inserted, the center of the drill bit coincides with the center of the magnetic shell, effectively solving the technical problem of the center point and center line of the drill press being difficult to mark in the prior art, and achieving the technical effect of the drill bit and the magnetic shell being collinear.

[0014] 4. The sliding block has a circular arc part, the clamping jaw is connected concentrically with the magnetic shell, effectively solving the technical problem of the center point and center line of the drill press being difficult to mark in the prior art, and achieving the technical effect of the clamping jaw and the magnetic shell being concentric.

[0015] 5. The plunger is assembled in the sliding block, and the radial force is formed by the plunger, effectively solving the technical problem of the center point and center line of the drill press being difficult to mark in the prior art, and quickly inserting and pulling out, efficiently centering, and achieving the technical effect that the laser point / line emitted by the laser emitter is the center point / line of the drill bit.

[0016] It is suitable to be applied as a magnetic clamping auxiliary laser centering device of a drill press. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed in the embodiment or prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0018] Figure 1 It is a southeast isometric half-sectional view of the embodiment;

[0019] Figure 2 It is a southwest isometric half-sectional view of the embodiment;

[0020] Figure 3 It is an explosion view of the embodiment;

[0021] Figure 4 It is a front half-sectional view of the embodiment;

[0022] Figure 5 It is a southeast isometric view of the first support block, the second support block, the circular ring and the clamping jaw;

[0023] Figure 6 It is a southwest isometric view of the first support block, the second support block, the circular ring and the clamping jaw;

[0024] Figure 7 It is a first support block structure schematic view;

[0025] Figure 8 is a schematic view of a second support block structure;

[0026] Figure 9 is a southeast isometric view of a third support block;

[0027] Figure 10 is a southwest isometric view of a third support block;

[0028] Figure 11 is a southeast isometric view of a clamping jaw;

[0029] Figure 12 is a southeast isometric view of an end cap;

[0030] Figure 13 is a southeast isometric view of a closure cap;

[0031] Figure 14 is a southeast isometric view of a plunger;

[0032] Figure 15 is a southwest isometric view of a plunger.

[0033] In the figure:

[0034] 0. drill bit;

[0035] 1. laser emitter;

[0036] 2. magnetic housing,

[0037] 3. end cap,

[0038] 31. mounting hole,

[0039] 32. bolt through hole;

[0040] 4. bolt;

[0041] 5. closure cap,

[0042] 51. drill bit through hole,

[0043] 52. bolt hole;

[0044] 6. support block,

[0045] 61. first support block,

[0046] 611. first sector block,

[0047] 612. first bolt through hole,

[0048] 62. second support block,

[0049] 621. second sector block,

[0050] 622. second bolt through hole,

[0051] 623. first circular groove,

[0052] 63. third supporting block,

[0053] 631. third fan-shaped block,

[0054] 632. third bolt through hole,

[0055] 633. groove,

[0056] 634. inner supporting block,

[0057] 635. second circular groove,

[0058] 636. laser mounting seat,

[0059] 637. laser assembly hole;

[0060] 7. clamping claw,

[0061] 71. sliding block,

[0062] 711. circular arc part,

[0063] 712. mounting groove,

[0064] 713. magnetic stripe groove,

[0065] 72. magnetic stripe,

[0066] 73. plunger,

[0067] 731. cylinder,

[0068] 732. column sleeve,

[0069] 733. compression spring,

[0070] 734. ball;

[0071] 8. limiting ring. DETAILED DESCRIPTION

[0072] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0073] According to the description Figures 1-3 As shown in the description, a magnetic clamping auxiliary laser centering device for drilling machine comprises a laser emitter 1, a magnetic shell 2, an end cover 3, a bolt 4, a cover 5, a support block 6, a clamping jaw 7 and a limiting ring 8;

[0074] The laser emitter 1 is used for emitting a cross line laser light source to confirm the center point / line of the drilling machine;

[0075] In the embodiment, the laser emitter 1 is a cylindrical cross line laser light source;

[0076] The magnetic shell 2 is a hollow cylindrical structure and has magnetism;

[0077] The support block 6 is concentrically assembled in the magnetic shell 2 and is a split type combined structure, comprising a first support block 61, a second support block 62 and a third support block 63, the lower part of the third support block 63 extends out of the magnetic shell 2, and the laser emitter 1 is assembled at the center of the third support block 63, and the center of the laser emitter 1 is collinear with the center of the support block 6;

[0078] The clamping jaw 7 is arranged in the interval cavity of the support block 6, and the magnetic shell 2 forms repulsive magnetic force, and applies radial clamping force to the drill bit 0, which is used for contacting and centering and locking the drill bit 0, the clamping center of the clamping jaw 7 coincides with the center of the drill bit 0, and the center of the laser emitter 1 is collinear with the center of the drill bit 0;

[0079] The limiting ring 8 is assembled on the support block 6 and is used for limiting the clamping jaw 7;

[0080] The end cover 3 is concentric with the magnetic shell 2 and is assembled at one end of the magnetic shell 2, which is used for accommodating the support block 6 in the magnetic shell 2, and the laser emitter 1 assembled at the extension of the third support block 63 protrudes out of the magnetic shell 2;

[0081] The cover 5 is concentric with the magnetic shell 2 and is assembled at the other end of the magnetic shell 2, which is used for accommodating the support block 6 in the magnetic shell 2, and the drill bit 0 is inserted into the center of the clamping jaw 7 to accommodate the drill bit 0 in the inner cavity of the support block 6;

[0082] The bolt 4 is used for detachably assembling the end cover 3 and the cover 5 on the magnetic shell 2;

[0083] In the embodiment, the drill bit 0 is inserted into the inner cavity of the support block 6 through the cover 5, and the drill bit 0 is centered and clamped by the clamping jaw 7 in the support block 6; the magnetic shell 2, the laser emitter 1 and the drill bit 0 are concentric, and the center point and the center line of the drill bit 0 are indicated by laser, and the center point and the center line of the drilling machine can be directly marked by a marker according to the laser indication, so that the center point of the drilling machine is not needed to be pre-punched and marked by a center drill, and the drilling precision and efficiency are improved.

[0084] The technical solutions in the embodiments of the application have at least the following technical effects or advantages:

[0085] Since the support block 6 and the clamping claw 7 are concentrically connected, the centers of the two are collinear, the clamping claw 7 centers and clamps the drill bit 0 and the magnetic shell 2, that is, the magnetic shell 2, the laser emitter 1 and the drill bit 0 are concentric, the drill bit 0 inserted into the inner cavity of the support block 6 by the cover 5 is collinear with the center of the laser emitter 1 assembled on the center of the third support block 63, the laser point / line emitted by the laser emitter 1 is the center point / line of the drill bit 0, and then marking the center point / line by a marker pen through the laser point / line is equivalent to the center point / line of the drill bed, so that the work efficiency is improved and the damage to the workpiece caused by the traditional center drill twice dotting is avoided.

[0086] In order to ensure the stability of the structure of the embodiment, referring to the drawings Figures 4-10 The middle part of the support block 6 is provided with a circular hole for accommodating the drill bit 0 in the inner cavity of the support block 6.

[0087] In the embodiment, the diameter of the circular hole is slightly larger than the diameter of the drill bit 0, and a space for elastic clamping of the drill bit 0 is reserved.

[0088] The support block 6 comprises a first support block 61, a second support block 62 and a third support block 63.

[0089] The first support block 61 is concentrically assembled in the magnetic shell 2 and is formed by a circular array of first sector blocks 611, and the clamping claws 7 are assembled in the interval cavities between the first sector blocks 611; first bolt through holes 612 are uniformly arranged on the first sector blocks 611 and are used for the bolts 4 to pass through the first support block 61, and the first support block 61 is assembled in the magnetic shell 2 by the cover 5.

[0090] In the embodiment, the first sector blocks 611 are six and are uniformly arranged; and the first bolt through holes 612 are two and are uniformly distributed.

[0091] The second support block 62 is located inside the first sector blocks 611, is connected with the first sector blocks 611 and is concentrically assembled in the magnetic shell 2, is formed by a circular array of second sector blocks 621, and the clamping claws 7 are assembled in the interval cavities between the second sector blocks 621; second bolt through holes 622 are uniformly arranged on the second sector blocks 621 and are used for the bolts 4 to pass through the second support block 62; and a first circular ring groove 623 is arranged at one end of the second support block 62 and is used for assembling the limiting ring 8 to assemble and limit the clamping claws 7.

[0092] In the embodiment, the second sector blocks 621 are six and are uniformly arranged; and the second bolt through holes 622 are two and are uniformly distributed.

[0093] The third supporting block 63 is concentrically connected with the second supporting block 62 and is assembled in the magnetic shell 2; one end of the third supporting block 63 is assembled in the magnetic shell 2 through the end cover 3, and a third sector block 631 is arranged in the circumferential direction on the third supporting block 63; a third bolt through hole 632 is arranged in the third sector block 631 in a uniform manner, and the bolt 4 passes through the third supporting block 63 and is assembled in the magnetic shell 2 through the end cover 3; a groove 633 is arranged between the third sector blocks 631, and the clamping claw 7 is assembled in the groove 633; the third sector block 631 is radially provided with an inner supporting block 634, and a second circular groove 635 is formed between the third sector block 631 and the inner supporting block 634, and the limiting ring 8 is assembled in the second circular groove 635; the inner supporting block 634 forms a blind hole, and the drill bit 0 is accommodated in the inner cavity of the supporting block 6.

[0094] In the embodiment, the diameter of the blind hole is slightly larger than the diameter of the drill bit 0, and a space for elastically clamping the drill bit 0 is reserved.

[0095] The other end of the third supporting block 63 extends out of the end cover 3 and is provided with a laser mounting seat 636; the laser mounting seat 636 is provided with a laser assembly hole 637 in the center; the laser emitter 1 is a cylindrical cross-line laser light source; the laser emitter 1 is embedded in the laser assembly hole 211, and the center of the laser emitter 1 is collinear with the center of the clamping claw 7.

[0096] The first supporting block 61 and the second supporting block 62 and the second supporting block 62 and the third supporting block 63 are respectively assembled with the limiting ring 8, and the clamping claw 7 is limited in the interval cavity of the supporting block 6.

[0097] As a conventional technical option, the bottom of the blind hole in the third supporting block 63 is provided with a drilling taper angle, and the drilling taper angle is 118°; a centering taper pit is formed at the bottom of the blind hole, so that the drill bit 0 is centered and fixed.

[0098] The technical scheme in the embodiment of the application has at least the following technical effects or advantages:

[0099] Since the supporting blocks 6 are arranged in the circumferential direction in the magnetic shell 2, the center of the supporting block 6 is coincident with the center of the magnetic shell 2.

[0100] Since the drilling taper angle of the blind hole in the third supporting block 63 is 118°, a centering taper pit is formed at the bottom of the blind hole, so that the center of the drill bit 0 is coincident with the center of the magnetic shell 2 when the drill bit 0 is inserted, and the drill bit 0 is collinear with the magnetic shell 2.

[0101] In order to further ensure the stability of the structure of the embodiment, refer to the accompanying drawings Figure 11 The clamping claw 7 comprises

[0102] The sliding block 71, the magnetic strip 72 and the plunger 73;

[0103] The slider 71 is a sheet block assembled in the interval cavity of the support block 6, the centers of the circumferential array of sliders 71 are collinear with the center of the magnetic shell 2, the slider 71 contacts and radially extrudes the drill bit 0, clamps and centers the drill bit 0; a magnetic strip slot 713 is arranged on the top of the slider 71, used for assembling the magnetic strip 72; two installation slots 712 are arranged on the bottom of the slider 71, used for assembling the limiting ring 8; a plunger hole is arranged on one end of the slider 71;

[0104] The plunger 73 is assembled in the plunger hole on one end of the slider 71, contacts the bottom of the blind hole in the third support block 63, and is used for limiting the axis of the clamping jaw 7;

[0105] The magnetic strip 72 is assembled in the magnetic strip slot 713 of the slider 71, the magnetic strip 72 is adjacent to the magnetic pole on the inner wall of the magnetic shell 2, and the magnetic pole on the inner wall of the magnetic shell 2 is the same, the repulsive force generated by the magnetic strip 72 drives the slider 71 to slide in the interval cavity of the support block 6, and then elastically clamps the drill bit 0;

[0106] The height of the slider 71 is greater than the depth of the interval cavity, and the sliders 71 are symmetrically distributed, so that the sliders 71 do not slide out of the interval cavity when the drill bit 0 is not inserted.

[0107] In this embodiment, the clamping jaw 7 is six, and is arranged in a uniform manner.

[0108] In order to optimize the structure of this embodiment, the other end of the slider 71 is provided with a circular arc part 711, which is used for the drill bit 0 to follow the smooth transition into the inner cavity of the support block 6.

[0109] In order to further optimize the structure of this embodiment, refer to the accompanying drawings of the specification Figures 14-15 The plunger 73 is a press-in type elastic ball head plunger, which includes a cylinder 731, a cylinder sleeve 732, a compression spring 733 and a ball 734.

[0110] The cylinder sleeve 732 is assembled on the upper part of the cylinder 731, the compression spring 733 is sleeved in the cylinder sleeve 732, the top end of the compression spring 733 is provided with the ball 734, which is used for point contact with the blind hole in the third support block 63, uniformly bears the axial force when the drill bit 0 is inserted, and facilitates the clamping jaw 7 to clamp and center the drill bit 0 at multiple points.

[0111] In this embodiment, two plungers 73 are arranged on the end of the slider 71, which uniformly bear the axial force when the drill bit 0 is inserted, and facilitate the slider 71 to center the drill bit 0.

[0112] In order to further optimize the structure of this embodiment, refer to the accompanying drawings of the specification Figure 12 The end cover 3 includes an installation hole 31 and a bolt through hole 32.

[0113] The end cover 3 is a disc structure, and is concentrically connected with the magnetic shell 2. A mounting hole 31 is arranged in the middle of the end cover 3, and is used for the laser mounting seat 636 of the third supporting block 63 to extend out, and assemble the laser emitter 1 to emit laser; and a plurality of bolt through holes 32 are arranged in the circumference of the end cover 3, and are used for connecting and fixing the end cover 3 with the magnetic shell 2 through the bolts 4.

[0114] In the embodiment, the diameter of the mounting through hole 31 is slightly larger than the diameter of the laser mounting seat 636, and the clearance fit facilitates assembly; and the twelve bolt through holes 32 are uniformly arranged.

[0115] The technical scheme in the embodiment of the application has at least the following technical effects or advantages:

[0116] Since the end cover 3 has the bolt through holes 32 arranged in the circumference, the end cover 3 is concentrically connected with the magnetic shell 2, and the concentricity of the end cover 3 and the magnetic shell 2 is ensured.

[0117] In order to further optimize the structure of the embodiment, refer to the accompanying drawings Figure 13 The cover 5 includes a drill bit through hole 51 and a bolt through hole 52.

[0118] The cover 5 is a disc structure, and the drill bit through hole 51 is arranged in the middle of the cover 5, and is used for the drill bit 0 to pass through the cover 5 and enter the magnetic shell 2; and a plurality of bolt through holes 52 are arranged in the circumference of the cover 5, and are used for locking the cover 5 with the magnetic shell 2 through the bolts 4.

[0119] In the embodiment, the diameter of the drill bit through hole 51 is slightly larger than the diameter of the drill bit 0, and a margin for the drill bit 0 to pass through is reserved; and the twelve bolt through holes 52 are uniformly arranged.

[0120] The technical scheme in the embodiment of the application has at least the following technical effects or advantages:

[0121] Since the cover 5 has the bolt through holes 32 arranged in the circumference, the cover 5 is concentrically connected with the magnetic shell 2, and the concentricity of the cover 5 and the magnetic shell 2 is ensured.

[0122] The working principle of the embodiment is as follows:

[0123] The magnetic shell 2 has magnetism, the magnetic poles of the inner wall of the magnetic shell 2 are the same as the magnetic poles adjacent to the inner wall of the magnetic shell 2 of the magnetic strip 72, and the action force generated by repulsion drives the clamping jaw 7 to slide in the interval cavity of the supporting block 6.

[0124] The drill bit 0 is inserted at one end of the magnetic shell 2, the clamping jaw 7 generates a magnetic clamping force acting on the drill bit 0 until the drill bit 0 is centered and clamped, at this time the center of the drill bit 0 coincides with the center of the magnetic shell 2; at the same time, the laser emitter 1 assembled at the other end of the magnetic shell 2 is concentric with the magnetic shell 2, and then the laser point / line emitted by the laser emitter 1 is the same as the center point / line of the drill bit 0, thereby realizing quick insertion and extraction and realizing laser centering.

[0125] It should be noted that the contents not described in detail in the specification all belong to the prior art known to those skilled in the art, and the model parameters of the laser emitter 1 are not specifically limited and can be determined using conventional equipment. In the technical solution, the electric control elements not mentioned belong to the prior art and are not shown in the figure and will not be described here.

[0126] Finally, it should be pointed out that the above description is only a preferred embodiment of the present application and is not used to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacements for some technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A magnetic clamping assisted laser centering device for a drilling machine, characterized by: It comprises a laser emitter (1), a magnetic housing (2), an end cover (3), a bolt (4), a cover (5), a support block (6), a clamping claw (7) and a limiting ring (8); The laser transmitter (1) is used to emit a cross-line laser light source to confirm the center point / line of the drilling machine; The magnetic shell (2) is a hollow cylindrical structure and has magnetic properties; The support block (6) is concentrically assembled in the magnetic housing (2) and is a split-type combined structure, comprising a first support block (61), a second support block (62) and a third support block (63). The lower portion of the third support block (63) extends out of the magnetic housing (2), and a laser emitter (1) is assembled at the center thereof. The laser emitter (1) is collinear with the center of the support block (6). The clamping claw (7) is assembled in the spacer cavity of the support block (6), and forms a repulsive magnetic force in the magnetic housing (2), applying a radial clamping force to the drill bit (0), for contacting the drill bit (0) and centering and locking it, the clamping center of the clamping claw (7) coincides with the center of the drill bit (0), and the center of the laser transmitter (1) is collinear with the center of the drill bit (0); The limiting ring (8) is assembled on the supporting block (6) and is used to limit the clamping claw (7); The end cap (3) is concentric with the magnetic housing (2) and is assembled at one end of the magnetic housing (2) for receiving the support block (6) in the magnetic housing (2); the laser emitter (1) assembled at the extension of the third support block (63) protrudes out of the magnetic housing (2); The cover (5) is concentric with the magnetic housing (2) and is assembled at the other end of the magnetic housing (2) to accommodate the support block (6) in the magnetic housing (2), and the drill bit (0) is inserted into the center of the clamping claw (7) to accommodate the drill bit (0) in the inner cavity of the support block (6); The bolts (4) are used to detachably assemble the end cover (3) and the cover (5) on the magnetic housing (2); The drill bit (0) is inserted into the inner cavity of the support block (6) through the cover (5), and the drill bit (0) is centered and clamped by the clamping claws (7) in the support block (6); the magnetic housing (2), the laser emitter (1) and the drill bit (0) are concentric, and the center point and center line of the drill bit (0) are indicated by the laser, and the center point and center line of the drilling machine are directly marked with a marker according to the laser indication.

2. The magnetic clamping assisted laser centering device for a drilling machine according to claim 1, characterized in that: A circular hole is provided in the middle of the support block (6) for receiving the drill bit (0) in the inner cavity of the support block (6); the support block (6) comprises a first support block (61), a second support block (62) and a third support block (63); The first support block (61) is concentrically assembled in the magnetic housing (2) and is formed by a circumferential array of first sector blocks (611). Clamping claws (7) are assembled in the spacing cavities between the first sector blocks (611). First bolt through holes (612) are evenly arranged on the first sector blocks (611) for passing bolts (4) through the first support block (61). The first support block (61) is assembled in the magnetic housing (2) through the cover (5). The second support block (62) is located inside the first sector block (611), is connected to the first sector block (611), is concentrically assembled in the magnetic housing (2), and is formed by a circumferential array of second sector blocks (621). A clamping claw (7) is assembled in the spacing cavity between the second sector blocks (621); second bolt through holes (622) are evenly arranged on the second sector block (621) for the bolt (4) to pass through the second support block (62); a first annular groove (623) is provided at one end of the second support block (62) for assembling a limiting ring (8) to assemble and limit the clamping claw (7); The third support block (63) is concentrically connected to the second support block (62) and assembled in the magnetic housing (2); one end of the third support block (63) is assembled in the magnetic housing (2) through the end cover (3), and a third sector block (631) is arranged in a circumferential array on the third support block (631). The third sector block (631) is evenly arranged with third bolt through holes (632) for passing the bolt (4) through the third support block (63) and assembling the third support block (63) in the magnetic housing (2) through the end cover (3); a groove (633) is provided between the third sector blocks (631) for assembling the clamping claw (7); the third sector block (631) is radially provided with evenly distributed An inner support block (634) is provided, wherein a second annular groove (635) is formed between the third sector block (631) and the inner support block (634) for assembling a limit ring (8), and a blind hole is formed in the inner support block (634) for receiving the drill bit (0) in the inner cavity of the support block (6); an end cover (3) extends from the other end of the third support block (63) and is provided with a laser mounting seat (636), a laser mounting hole (637) is provided at the center of the laser mounting seat (636), and the laser emitter (1) is a cylindrical cross-line laser light source, and the laser emitter (1) is embedded in the laser mounting hole 211, and the center of the laser emitter (1) is collinear with the center of the clamping claw (7); Wherein, limiting rings (8) are respectively assembled between the first support block (61) and the second support block (62), and between the second support block (62) and the third support block (63), so as to limit the clamping claw (7) in the spacing cavity of the support block (6).

3. The magnetic clamping assisted laser centering device for a drilling machine according to claim 2, characterized in that: The bottom of the blind hole in the third support block (63) is provided with a drilling cone angle of 118°, and a centering cone pit is formed at the bottom of the blind hole, so that the drill bit (0) can be centered and fixed.

4. The magnetic clamping assisted laser centering device for a drilling machine according to claim 1, characterized in that: The clamping claw (7) includes a slider (71), a magnetic strip (72) and a plunger (73); The slider (71) is a sheet-shaped block, which is assembled in the spacer cavity of the support block (6). The center of the slider (71) in the circumferential array is collinear with the center of the magnetic housing (2). The slider (71) contacts and radially squeezes the drill bit (0), clamps the drill bit (0) and centers it. A magnetic strip groove (713) is provided on the top of the slider (71) for assembling the magnetic strip (72). Two mounting grooves (712) are provided on the bottom of the slider (71) for assembling the limit ring (8). A plunger hole is arranged at one end of the slider (71). The plunger (73) is assembled in the plunger hole at one end of the slider (71) and contacts the bottom of the blind hole in the third support block (63) to limit the axis of the clamping claw (7); The magnetic strip (72) is assembled in the magnetic strip slot (713) of the slider (71), and the magnetic poles of the magnetic strip (72) adjacent to the inner wall of the magnetic housing (2) are the same as the magnetic poles of the inner wall of the magnetic housing (2). The force generated by the repulsion drives the slider (71) to slide in the spacer cavity of the support block (6), thereby elastically clamping the drill bit (0); The height of the sliders (71) is greater than the depth of the spacer cavity, and the sliders (71) are symmetrically distributed to prevent the sliders (71) from blocking each other and not sliding out of the spacer cavity when the drill bit (0) is not inserted.

5. The magnetic clamping assisted laser centering device for a drilling machine according to claim 4, characterized in that: The other end of the slider (71) is provided with an arc portion (711) for the drill bit (0) to smoothly transition along the arc portion and enter the inner cavity of the support block (6).

6. The magnetic clamping assisted laser centering device for a drilling machine according to claim 4, characterized in that: The plunger (73) is a press-in elastic ball plunger, comprising a cylinder (731), a cylinder sleeve (732), a compression spring (733) and a ball (734); A column sleeve (732) is assembled on the upper part of the cylinder (731), and a compression spring (733) is arranged in the column sleeve (732). A ball (734) is provided on the top of the compression spring (733) for point contacting the blind hole in the third support block (63) to evenly bear the axial force when the drill bit (0) is inserted, so as to facilitate the clamping claw (7) to clamp and center the drill bit (0) at multiple points.

7. The magnetic clamping assisted laser centering device for a drilling machine according to claim 2, characterized in that: The end cover (3) includes a mounting hole (31) and a bolt through hole (32); The end cover (3) is a disc-shaped structure, which is concentrically connected to the magnetic housing (2). A mounting hole (31) is provided in the middle of the end cover (3), which is used for the laser mounting seat (636) of the third support block (63) to extend and assemble the laser emitter (1) to emit laser light. Bolt through holes (32) are provided in a circumferential array on the end cover (3) for connecting and fixing the end cover (3) to the magnetic housing (2) through bolts (4).

8. The magnetic clamping assisted laser centering device for a drilling machine according to claim 1, characterized in that: The cover (5) comprises a drill through hole (51) and a bolt through hole (52); The cover (5) is a disc-shaped structure. A drill through hole (51) is provided in the middle of the cover (5) for the drill (0) to pass through the cover (5) and enter the magnetic housing (2). Bolt through holes (52) are provided in a circumferential array on the cover (5) for locking the cover (5) and the magnetic housing (2) with bolts (4).

Images